CN211398324U - Gear transmission part - Google Patents
Gear transmission part Download PDFInfo
- Publication number
- CN211398324U CN211398324U CN201922244300.5U CN201922244300U CN211398324U CN 211398324 U CN211398324 U CN 211398324U CN 201922244300 U CN201922244300 U CN 201922244300U CN 211398324 U CN211398324 U CN 211398324U
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- China
- Prior art keywords
- gear
- pin
- truncated cone
- shaft
- circular truncated
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Abstract
The utility model belongs to the field of mechanical transmission, and provides a gear transmission part, which comprises a gear 1, a taper pin 2 and a shaft 3; the gear 1 is provided with a circular truncated cone with a through hole; the side wall of the circular truncated cone is provided with a pin hole; a key groove is formed on the shaft 3; one end of the shaft 3 is inserted into the circular truncated cone, and the key groove is positioned in the circular truncated cone; the middle part of the conical pin 2 is of a conical structure, and after the conical pin 2 is inserted into a pin hole in the side wall of the circular truncated cone, the conical part of the conical pin 2 is matched with a key groove in the shaft 3; the tail end of the taper pin 2 is provided with threads, and the taper pin 2 is in threaded connection with the side wall of the circular truncated cone to fix the connecting shaft 3 and the gear 1. The utility model discloses simple structure, reliable can not take place to become flexible after screwing up, can be used to the fastening connection of axle and gear.
Description
Technical Field
The utility model belongs to the mechanical transmission field specifically is a gear drive spare.
Background
Fastening of the gear to the shaft is currently generally accomplished by means of a key, a tapered set screw, or a flat set screw fit. The fixed shaft and the gear are easy to loosen by using the key, the conical end set screw or the flat end set screw, the transmitted torque is small, and relative sliding is easy to occur.
SUMMERY OF THE UTILITY MODEL
The patent of the utility model relates to an adopt a screw thread taper pin and two flat end holding screw come fastening shaft and gear. The shaft is provided with a radial key groove, and the gear is provided with a corresponding pin hole.
The utility model discloses the technical scheme who takes does: a gear transmission comprising a gear 1, a conical pin 2, a shaft 3;
the gear 1 is provided with a circular truncated cone with a through hole; the side wall of the circular truncated cone is provided with a pin hole;
a key groove is formed in the shaft 3; one end of the shaft 3 is inserted into the circular truncated cone, and the key groove is positioned in the circular truncated cone;
the middle part of the conical pin 2 is of a conical structure, and after the conical pin 2 is inserted into a pin hole in the side wall of the circular truncated cone, the conical part of the conical pin 2 is matched with a key groove in the shaft 3; the tail end of the taper pin 2 is provided with threads, and the taper pin 2 is in threaded connection with the side wall of the circular truncated cone to fix the connecting shaft 3 and the gear 1.
Further, the side wall of the circular truncated cone is provided with a plurality of screw holes; the gear transmission part further comprises a plurality of screws 4, and the screws 4 are in threaded connection with the screw holes to fix the shaft 3 and the gear 1.
Furthermore, the plurality of screw holes and the pin holes are positioned on the same circumference of the circular truncated cone.
Further, the gear transmission part comprises 2 screw holes, and the included angle of the 2 screw holes along the circumferential direction of the side wall of the circular truncated cone ranges from 60 degrees to 120 degrees.
Furthermore, the taper pin 2 passes through a through hole correspondingly formed in the side wall of the circular truncated cone after passing through a key groove in the shaft 3.
Further, the screw 4 is a flat-end set screw.
The technical effects of the utility model: compared with the prior art, the utility model discloses a gear and axle fastening connection have connect reliable, simple structure and the big characteristics of transmission moment of torsion. The connecting structure solves the problems of loose connection and small torque between the gear and the shaft, is convenient to use, and can be suitable for various fastening connection occasions such as machinery and the like.
Drawings
FIG. 1 is a front view of the driving member of the present invention after installation;
FIG. 2 is a rear sectional view of the driving member of the present invention;
FIG. 3 is a schematic structural diagram of the driving member of the present invention;
wherein, 1-gear, 2-screw thread taper pin, 3-axle, 4-flat end holding screw.
Detailed Description
FIG. 1 is a front view of the driving member of the present invention after installation; FIG. 2 is a rear sectional view of the driving member of the present invention; FIG. 3 is a schematic structural diagram of the driving member of the present invention; with reference to fig. 1 to 3, the present embodiment provides a gear transmission comprising a gear 1, a conical pin 2, a shaft 3;
the gear 1 is provided with a circular truncated cone with a through hole; the side wall of the circular truncated cone is provided with a pin hole;
a key groove is formed in the shaft 3; one end of the shaft 3 is inserted into the circular truncated cone, and the key groove is positioned in the circular truncated cone;
the middle part of the conical pin 2 is of a conical structure, and after the conical pin 2 is inserted into a pin hole in the side wall of the circular truncated cone, the conical part of the conical pin 2 is matched with a key groove in the shaft 3; the tail end of the taper pin 2 is provided with threads, and the taper pin 2 is in threaded connection with the side wall of the circular truncated cone to fix the connecting shaft 3 and the gear 1.
Further, the side wall of the circular truncated cone is provided with a plurality of screw holes; the gear transmission part further comprises a plurality of screws 4, and the screws 4 are in threaded connection with the screw holes to fix the shaft 3 and the gear 1. The plurality of screw holes and the pin holes are positioned on the same circumference of the circular truncated cone.
In this embodiment, the gear transmission part includes 2 screw holes, and 2 screw holes are 60 ~ 120 along the contained angle alpha of round platform lateral wall circumferential direction.
Furthermore, the taper pin 2 passes through a through hole correspondingly formed in the side wall of the circular truncated cone after passing through a key groove in the shaft 3. The screw 4 is a flat-end set screw.
In this embodiment: the shaft is provided with a radial key groove, the gear is provided with a corresponding pin hole, the threaded conical pin is screwed into the pin hole on the gear, then is matched with the radial key groove on the shaft, the rear fixed shaft and the gear are screwed tightly, and finally two flat-end fastening screws are installed. The gear is fixed to the shaft by a threaded tapered pin and two flat set screws.
Claims (6)
1. A gear transmission, characterized in that it comprises a gear (1), a conical pin (2), a shaft (3);
the gear (1) is provided with a circular truncated cone with a through hole; the side wall of the circular truncated cone is provided with a pin hole;
a key groove is formed in the shaft (3); one end of the shaft (3) is inserted into the circular truncated cone, and the key groove is positioned in the circular truncated cone;
the middle part of the conical pin (2) is of a conical structure, and after the conical pin (2) is inserted into a pin hole in the side wall of the circular truncated cone, the conical part of the conical pin (2) is matched with a key groove in the shaft (3); the tail end of the taper pin (2) is provided with threads, and the taper pin (2) is in threaded connection with the side wall of the circular truncated cone to fix the connecting shaft (3) and the gear (1).
2. A gear transmission according to claim 1, wherein said frustoconical side wall is provided with a plurality of screw holes; the gear transmission part further comprises a plurality of screws (4), the screws (4) are connected to the screw holes in a threaded mode, and the shaft (3) and the gear (1) are fixed.
3. A gear drive according to claim 2, wherein said plurality of screw holes, pin holes, are located on the same circumference of the circular table.
4. A gear drive according to claim 3, wherein the gear drive comprises 2 screw holes, the 2 screw holes being angled at an angle of 60 ° to 120 ° in the circumferential direction of the frustoconical side wall.
5. A gear transmission according to claim 1, wherein the conical pin (2) passes through a correspondingly provided through hole in the circular truncated cone side wall after passing through the keyway in the shaft (3).
6. A gear transmission according to claim 2, wherein the screw (4) is a flat-end set screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922244300.5U CN211398324U (en) | 2019-12-13 | 2019-12-13 | Gear transmission part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922244300.5U CN211398324U (en) | 2019-12-13 | 2019-12-13 | Gear transmission part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398324U true CN211398324U (en) | 2020-09-01 |
Family
ID=72232907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922244300.5U Active CN211398324U (en) | 2019-12-13 | 2019-12-13 | Gear transmission part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398324U (en) |
-
2019
- 2019-12-13 CN CN201922244300.5U patent/CN211398324U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |